patch 8.2.3128: Vim9: uninitialzed list does not get type checked

Problem:    Vim9: uninitialzed list does not get type checked.
Solution:   Set the type when initializing the variable. (closes #8529)
diff --git a/src/eval.c b/src/eval.c
index e0f0816..555cd38 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -959,7 +959,7 @@
 		&& lp->ll_tv == &v->di_tv
 		&& ht != NULL && ht == get_script_local_ht())
 	{
-	    svar_T  *sv = find_typval_in_script(lp->ll_tv);
+	    svar_T  *sv = find_typval_in_script(lp->ll_tv, TRUE);
 
 	    // Vim9 script local variable: get the type
 	    if (sv != NULL)